Improvement in pipe-connections



J. H, Asn. A PIPE CGNNECTION.

Patented Dec.12,1876.

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UNrTEn STATns aTnNT @Tarea JOSEPH H. ASH, OF BROOKLYN, NEW YORK.

IMPROVEMENT lN-PIPE-CONNECTIONS.

Specification forming part of Letters Patent No. lS5,156, dated December 12, 1876; application filed August 23, 1376.

To all whom it may concern Be it known that I, JOSEPH H. Asn, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in'Pipe-Oonnections; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in that class of pipe-couplings specially adapted for connecting together the ends of heavy metal sections to form continuous pipes or mains for conveyance of water, gas, or steam, the nature of which will be fully explained by reference to the accompanying drawings, in which- Figure l represents a perspective view of portions of two pipes, connected together according to my invention. Fig. 2 shows a similar view of the two portions separately. Fig. 3 is a vertical section of parts in the position shown in Fig. 1, an'd Fig. 4 is a detached perspective view of the washer.

In each of the views similar letters of reference are employed to indicate corresponding parts wherever they occur.

a and b represent the portions of two sections of pipe to be connected together, the section a being formed with an enlargement, al, adapted to receive within it the end ofthe section b, which, at its extremity, is provided with an annular enlargement, b1, formed semicircular in cross-section, as shown by Fig. 3.

The internal face or wall a2 cl3 of the enlargement al is formed smooth or entirely free from projecting shoulders or bearings, and terminates in a bell-shaped seating, a4, adapted to receive the washer d, which is firmly compressed between the enlargement b1 and the seat a4, when the sections a and b are brought together, as shown in Figs. l and 3.

By the peculiar construction of the parts, as shown, an annular space is left all around the section b, within the enlargement al, adapted tov receive additional calkin g material when required, and also for the insertion of calking-tools, for the purpose of pressing down the edge cl of the packing-ring d.

The sections a and b are held together by means or' studs or projections b2 formed on the exterior of part b, which are adapted to be received into the vertical portion c1 of the L-shaped slots c, and, when so received, of being turned so as to pass between the parallel inclined surfaces c3 ot' the part c2 of the slots c, thereby drawing the ends of the pipe gradually nearer together, and compressing the washer cl tightly between the enlargement bl and the seat c4. c c are enlargements formed on the parts a and b, for the purpose of facilitating the turning of said parts for the purpose of connecting or disconnecting the same.

The section c1 of the slot c being formed parallel with the axis of the pipe enables the sections to be brought together and held steadily in'position before being turned and finally connected thereby, facilitating adjustment and saving great labor to the workmen. The section c2 ofthe slot c is formed at nearly right angles to the axis of the pipe, being only inclined sufciently to act as a slight draw on the pipes when the latter are turned.

The straight and slightly-inclined bearingedge c3 enables the workmen to turn the pipes easily and with powerful force against the washer, and, when once the connection is made, there is little or no liability of the said sections of pipe being loosened by slight or ordinary jarring or vibration, as is the case where long continuously-curved slots are e111- ployed.

When the pipes are to be employed above ground, or in positions where they will be subjected to very great disturbances from vibrations or other causes, I employ a set-screw, f, applied through the straight portion of the enlargement al, and adapted to bear against the periphery of the part b when the latter has been placed in position and packed, thereby preventing any possibility of displacement of the sections.

The washer d is formed of lead or other soft metal employed in packing'pipe-joints. It is formed without a seam, and is cut and stamped by suitable machinery into a bell shape, as shown, so that it will Iit neatly over the scat a4, with a portion, d', of its larger end resting against and lying slightly along the inner face of the enlargement a1,ai1d between the latter and the annular projection b1 of the pipe b.

When the pipes are first brought together by sliding the projections b2 into parts c1 of the slots c, the annular rim b1 is received within the larger end d of the washer d; and When the pipes are drawn together by the action of the projections b in the slots c2, the edge d of said washer projects slightly beyond the rim b1, so that it may be hammered down by suitable calking instruments inserted Within the space between the enlargement al and the end of the pipe b.

By this arrangement, it. Will be readily seen that a perfectly-tight joint may be made. The slots c2 afford facilities for the use of calking implements in the process of hammering down of that part ofthe edge d opposite said slots.

It will be seen that by this construction a connection is made in which a space about the end of the pipe is provided, which space is entirely free from obstructions, except that offered by the narrow projections b2, and that further calkin g than that provided by the washer d may be readily done when desireda result which cannot be obtained Where extended inner projections are formed on the inner surface of the enlarged end al.

Having thus described my invention, I would have it understood that I do not claim, broadly, connecting together the ends of sections to form continuous pipes by means of projections on one section taking into or being retained by retaining portions on the other section; but

What I do claim, Letters Patent, is-

The combination, with a section provided with an enlargement, al, having its inner face or wall a2 a3 formed smooth or free from pro jecting shoulders or bearings, and terminat ing in a bell-shaped bearing, a4, and provided with L- shaped slots c, having straight portions c1 and inclined portions c2, and setscrew f, of the washer d, made bell shape, with the extended portion d and section b having a semicircular annular projection b1 formed on its extremity, and studs or projections b2, the whole being constructed, arranged, and operating in the manner as and for the purpose shown and described.

In testimony that I claim the foregoing as my own I aflx my signature in presence of two witnesses.

and desire `to secure by JOSEPH H. 4ASH.

Witnesses:

R. H. LACEY, E. ASH. 

